This is the 616th most frequent Dutch word.
ie
"ie" is an informal pronoun in Dutch meaning "he" or "him."
Used as a colloquial form of 'hij' (he).
Wie is ie daar met die hoed?
Who is he there with the hat?
'Ie' stands for 'hij', a colloquial way to say 'he'.
Ik weet dat ie alles kan oplossen.
I know that he can solve everything.
Informal use of 'ie' to mean 'hij' in conversational Dutch.